Evaluation of effect of hydrogen peroxide disinfectant on terminal disinfection in wards
10.11816/cn.ni.2025-246911
- VernacularTitle:过氧化氢消毒剂对病房终末消毒的效果评价
- Author:
Zequan WANG
1
;
Linxia YI
;
Zhiqin XIE
;
Min ZHANG
;
Wanyin XIONG
;
Li ZHOU
;
Tianxin XIANG
;
Yunyu DU
;
Shihan CHEN
;
Xuemei TAO
;
Chao XIE
;
Zhen YANG
Author Information
1. 南昌大学第一附属医院护理部,江西南昌 330000;南昌大学护理学院,江西南昌 330000
- Publication Type:Journal Article
- Keywords:
Geobacillus stearothermophilus;
Hydrogen peroxide;
Ward;
Air disinfection;
Object surface disinfec-tion
- From:
Chinese Journal of Nosocomiology
2025;35(21):3326-3329
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To explore the effect of hydrogen peroxide disinfectant on terminal disinfection in wards of medical institutions.METHODS The surfaces of highly frequent contact objects of the wards of the First Affilia-ted Hospital of Nanchang University from which the public health center patients were discharged between Apr.2024 and Jun.2024 were respectively disinfected with 0.5％(low)and 5％(high)concentrations of hydrogen peroxide disinfecting wipes,totally 180 samples were randomly collected before and after the disinfection,and the pathogens were detected.The air of the wards from which the public health center patients were discharged be-tween Jul.2024 and Aug.2024 were disinfected with hydrogen peroxide dry mist disinfection device,and 90 sam-ples were respectively collected before and after the disinfection.Geobacillus stearothermophilus was used as the biological indicator and placed at various points within the air-disinfected wards to evaluate the disinfection level.The environmental sampling results and distribution of bacteria were observed and compared.RESULTS The qualified rates of disinfection of the object surfaces were 95.56％(86/90)and 98.89％(89/90)respectively for the low and high concentratioins of hydrogen peroxide disinfecting wipes,and there was no significant difference in the disinfection effect.Totally 120 strains of pathogens were isolated from unqualified samples before the disinfection,among which gram-negative bacteria(69.17％)were dominant,and the isolation rate of multidrug-resistant or-ganisms was 22.50％(27/120);only 1 strain of carbapenem-resistant Acinetobacter baumannii was isolated after the disinfection.The qualified rate of disinfection of air in the wards was 96.00％by 7.5％hydrogen peroxide dry mist disinfection device,the average bacterial colony counts in the air were 2 CFU/(5 min·vsl)after the dis-infection,and the killing rate of Geobacillus stearothermophilus was 100.00％by the air disinfection.CONCLUSION The hydrogen peroxide disinfectant can meet the requirement for terminal disinfection of the wards of the medical institutions,and it is portable and highly efficient.
